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URBAN FREEWAY SURVEILLANCE AND CONTROL: THE STATE OF THE ART

FREEWAY SURVEILLANCE AND CONTROL TECHNIQUES CAN BE EFFECTIVE SOLUTIONS FOR URBAN FREEWAY PROBLEMS. THIS STATE OF THE ART REPORT GIVES ADVICE ON THE SELECTION AND DESIGN OF VARIOUS CONTROL SYSTEMS AND DISCUSSES EIGHT SOLUTION TYPES. THE DEPLOYMENT AND USE OF NECESSARY HARDWARE IS DESCRIBED. CONTROL SYSTEMS CAN BE OPERATED WITH DIFFERENT STRATEGIES AND THE EFFECTS OF THESE FORMS OF OPERATION ARE DISCUSSED. AT THIS TIME INDUCTIVE LOOP DETECTORS SEEM TO BE THE BEST TYPE OF SENSOR FOR USE IN FREEWAY CONTROL AND SURVEILLANCE SCHEMES WITH MAGNETOMETERS AND SCENIC DETECTORS AS FEASIBLE ALTERNATIVES.